ISIS is desperate to show the world that life is normal in Iraq and Syria

But now it is teaching shopkeepers the correct way to ritually slaughter animals in line with strict Muslim Sharia laws.

Islamic State’s media wing said the course in the Iraqi city of Mosul was run by the group’s Hisbah religious police.hisbah

Their Amaq news agency reported: “The Hisbah Center organised a two-week long Sharia course, which was attended by 220 butchers in the city of Mosul.

“The course included Sharia lessons about sacrifice, its manners, conditions for slaughter, conditions of the animal to be slaughtered, disliked acts during slaughtering, forbidden acts concerning the animal to be consumed.

“Local sources stated to Amaq that livestock markets in Mosul were very active in preparation of sacrificial ritual shortly before the blessed Eid-al-Adha.”

Hisbah cops are also mounting spot checks on food stores to make sure that goods that are past their sell-by-date aren't being flogged.

It is part of a campaign by ISIS propaganda chiefs who are flooding social media accounts with of carefully stage-managed shots to try and portray that life is carrying on as normal under their rule.

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But the reality is far different with forces ranging against Raqqa and Mosul and with a host of other cities in Syria and Iraq once held by ISIS now fallen.

Dissident groups have reported that the power in Raqqa is now on for just an hour a day and clean water is in short supply.

Leading Islamic State expert Dr Michael Ryan - a former White House advisor – said: “ISIS has an integrated propaganda campaign carried out by a group with a clear plan.

“The gruesome pictures we focus on are aimed at its enemies and are important as warnings and as psychological warfare.

“Of course, these pictures are also aimed at potential supporters and members as well. In effect, the violent pictures and videos are the clearest evidence of how ISIS acts towards their enemies.

“The soft messages in peaceful, loving scenes within the Islamic State are just as important to show what life is like inside the areas governed by what we call ISIS or ISIL and what life could be like if their caliphate were to spread.

“These are pictorial representations of the classic Dar al-Harb (the Abode of War) in the gruesome pictures and the Dar al-Islam (Abode of Islam) in the pictures and videos showing families and happy children in an atmosphere of peaceful existence.

He said the seemingly harmless pictures of daily life were aimed at drawing in fresh blood to the regime’s lands.

Harvard-educated Dr Ryan added: “The depiction of peaceful scenes inside the Islamic State are aimed at all those outside the territory.

“Often, these are the lost, isolated youth who feel disconnected from the societies in which they live. They are also aimed at adults with the skills needed to promote this state, but may not be interested in fighting.

“ISIS puts out calls for wives, doctors and accountants and generally anybody with modern skills. These individuals, or very few of them, would be interested in giving up a medical practice to go for basic military training, but some might go to make a contribution to the caliphate if they had come to believe in it as a positive, viable alternative to wherever they are living.”

And he warned that life under ISIS is not what is depicted in the seemingly-harmless photographs of shops and markets.

He said: “There have been increasing accounts of young women and men who have escaped ISIS after being recruited. Their stories of life is a jarring contradiction of the pleasant pictures.”